Base | Representation |
---|---|
bin | 1000100101001000000100… |
… | …10100101001111101000000 |
3 | 2110210202011112102200100102 |
4 | 10102210002110221331000 |
5 | 4433112304024103410 |
6 | 104043432300141532 |
7 | 3655104265245620 |
oct | 422440224517500 |
9 | 73722145380312 |
10 | 18867830300480 |
11 | 6014890359717 |
12 | 21488662378a8 |
13 | a6b2c8790a05 |
14 | 4932ca518880 |
15 | 22abe00772a5 |
hex | 112902529f40 |
18867830300480 has 112 divisors (see below), whose sum is σ = 51360246800256. Its totient is φ = 6467358504960.
The previous prime is 18867830300461. The next prime is 18867830300491. The reversal of 18867830300480 is 8400303876881.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (112).
It is a super-2 number, since 2×188678303004802 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (56).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7959647 + ... + 10054433.
Almost surely, 218867830300480 is an apocalyptic number.
18867830300480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18867830300480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25680123400128).
18867830300480 is an abundant number, since it is smaller than the sum of its proper divisors (32492416499776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18867830300480 is a wasteful number, since it uses less digits than its factorization.
18867830300480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2098832 (or 2098822 counting only the distinct ones).
The product of its (nonzero) digits is 6193152, while the sum is 56.
The spelling of 18867830300480 in words is "eighteen trillion, eight hundred sixty-seven billion, eight hundred thirty million, three hundred thousand, four hundred eighty".
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